VEGA VEGABAR 55 Profibus PA - climate compensated - Manual (Page 24)

24
5 Connecting to power supply
VEGABAR 55 • Profibus PA - climate compensated
39442-EN-130321
1 2 3 4
6
3
4
1
2
5
Fig. 21: Connection of the sensor in the housing socket
1 Brown
2 Blue
3 Yellow
4 White
5 Shielding
6 Breather capillaries
I2C
Display
1
1 2 5 6 7 8
Fig. 22: Wiring plan external electronics
1 Voltage supply
5.8 Switch-on phase
After VEGABAR 55 is connected to voltage supply or after voltage
recurrence, the instrument carries out a self-check for approx. 30
seconds. The following steps are carried out:
•
Internal check of the electronics
•
Indication of the instrument type, the firmware as well as the sen-
sor TAGs (sensor designation)
•
Status byte goes briefly to fault value
Then the current measured value will be displayed and the corre-
sponding digital output signal will be outputted to the cable. 2)
Terminal compartment,
housing socket
Wiring plan external
electronics
Switch-on phase